3. Consider the following set of reactions: Overall reaction: CH4e) + NH3(8) → HCN8) + 3 H2e) AHoverall = ??? kJ Reaction 1: N2e) + 3 H2g) → 2 NH3(8) Reaction 2: Cs) + 2 H2(e) → CH4(e) Reaction 3: H2e) + 2 Cs) + N2(g) 2 HCN(e) AH, = -91.8 kJ AH2 = -74.9 kJ AH3 = +270.3 kJ a. What must be done to Reaction 1 to get NH3 on the reactant side? What is the resulting value of AH,? (Do not forget the unit) b. What must be done to Reaction 2 to get CH4 on the reactant side? What is the resulting value of AH2? (Do not forget the unit) C. What must be done to Reaction 3 to get one mole of HCN on the product side? What is the resulting value of AH3? (Do not forget the unit) d. Calculate the AHoverall by doing a summation of the modified reactions 1-3. (Do not forget the unit)

3. Consider the following set of reactions: Overall reaction: CH4e) + NH3(8) → HCN8) + 3 H2e) AHoverall = ??? kJ Reaction 1: N2e) + 3 H2g) → 2 NH3(8) Reaction 2: Cs) + 2 H2(e) → CH4(e) Reaction 3: H2e) + 2 Cs) + N2(g) 2 HCN(e) AH, = -91.8 kJ AH2 = -74.9 kJ AH3 = +270.3 kJ a. What must be done to Reaction 1 to get NH3 on the reactant side? What is the resulting value of AH,? (Do not forget the unit) b. What must be done to Reaction 2 to get CH4 on the reactant side? What is the resulting value of AH2? (Do not forget the unit) C. What must be done to Reaction 3 to get one mole of HCN on the product side? What is the resulting value of AH3? (Do not forget the unit) d. Calculate the AHoverall by doing a summation of the modified reactions 1-3. (Do not forget the unit)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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